aion MEGALITH Manual Download

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MEGALITH DUAL DRIVE

PROJECT NAME

MEGALITH

BASED ON

EFFECT TYPE

PROJECT SUMMARY

DOCUMENT VERSION

ZVEX

Box of Rock & Distortron

A two-channel drive composed of cascaded MOSFET boost stages. The drive channel and boost channel
can be combined or selected independently.

Amp-like overdrive / distortion

1.0.0 (2021-11-12)

BUILD DIFFICULTY

Intermediate

Actual size is 2.3” x 2.14” (main board) and 2.3” x 1.28” (bypass board).

Summary of Contents for MEGALITH

Page 1: ...Box of Rock Distortron A two channel drive composed of cascaded MOSFET boost stages The drive channel and boost channel can be combined or selected independently Amp like overdrive distortion 1 0 0 20...

Page 2: ...be added as seen in Zvex s original demo video The boost comes after the drive when both are engaged This is a reasonable way of using it but it won t work with every rig Because of this the Megalith...

Page 3: ...2 330R Metal film resistor 1 4W R13 390R Metal film resistor 1 4W R14 47k Metal film resistor 1 4W R15 82k Metal film resistor 1 4W R16 9k1 Metal film resistor 1 4W 10k in original See build notes R17...

Page 4: ...ubstitute 2N7000 rotate 180 degrees Q2 BS170 MOSFET N channel TO 92 Can substitute 2N7000 rotate 180 degrees Q3 BS170 MOSFET N channel TO 92 Can substitute 2N7000 rotate 180 degrees Q4 BS170 MOSFET N...

Page 5: ...h add up to 810n 2 pole filter values Between the tone control and drive level there is 2 pole filter formed by R16 C12 and R17 C13 In the original Box of Rock the two resistors are 10k and the two ca...

Page 6: ...Q3 R11 R13 C5 R14 C10 C11 R15 R16 C12 R17 C13 HI GAIN 2 3 1 C7 C6 SUB 2 3 1 R12 C8 C9 GND 1M 5kC 1M 1M BS170 1N5239 GND 5k1 100n VA GND 1uF 47k GND 10uF B BOOST IN OOST OUT R18 BOOST LEVEL 1 2 3 R19 R...

Page 7: ...If you d rather use open frame jacks please refer to the Open Frame Jack Drill Template for the top side LED hole drill size assumes the use of a 5mm LED bezel available from several parts suppliers A...

Page 8: ...MEGALITH DUAL DRIVE 8 ENCLOSURE LAYOUT Enclosure is shown without jacks See next page for jack layout and wiring 125B...

Page 9: ...MEGALITH DUAL DRIVE 9 WIRING DIAGRAM 125B D IN V GND D OUT B IN B OUT DRV IN GND V V JACK GND JACK OUT IN DRV BOOST BOOST OUT OUT IN...

Page 10: ...s suggestions based on the experience and opinions of others Projects may be used for commercial endeavors in any quantity unless specifically noted No attribution is necessary though a link back is a...